linux-kernel - Re: Quad core CPU detected but shows as single core in 2.6.23.1

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Message-ID: <20071104230753.GA4938@one.firstfloor.org>
Date:	Mon, 5 Nov 2007 00:07:53 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Andi Kleen <andi@...stfloor.org>, Chris Snook <csnook@...hat.com>,
	Zurk Tech <zurktech@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: Quad core CPU detected but shows as single core in 2.6.23.1

> Would it not be as simple as looking at the BIOS provided topology
> information? If nr sockets > 4 assume multiple board.

There is no reason multiple two socket boards couldn't be connected
with HT cables to form a larger system. Then you might end up
with a 4 socket system with multiple oscillators.

-Andi
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